Mechanical pumps

Details Mechanical pumps Mechanical pumps

1989-10-23

1991-10-08

Smith, Leonard E.

Rotary expansible chamber devices

With supply or exhaust passage in working member

418189, 418206, F04C 1818, F04C 2908

Patent

active

050550179

ABSTRACT:
A mechanical pump having a pumping chamber within which is positioned a pair of intermeshing rotors, preferably of the claw type, with each rotor mounted for rotation on respective shafts and the first rotor being associated with an inlet to the pumping chamber and the second rotor being associated with an outlet from the pumping chamber, wherein the second rotor has a cavity in its surface immediately adjacent the outlet.

REFERENCES:
patent: 2058817 (1936-10-01), Northey
patent: 2097037 (1937-10-01), Northey
patent: 2289371 (1942-07-01), Lysholm et al.
patent: 3472445 (1969-10-01), Brown
patent: 4504201 (1985-03-01), Wycliffe

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